How to Encode and Decode Modified Base64 URLs in ASP.NET Framework?
Jan 11, 2025 pm 10:08 PM
Encoding and decoding modified Base64 URLs in ASP.NET Framework
As defined by the "Modified Base64 for URLs" concept, decoding and encoding modified Base64 URLs can be implemented through custom code or by leveraging methods in the HttpServerUtility class.
Custom code
To perform modified Base64 encoding, you can use the following code:
// 執(zhí)行正常的 base64 編碼
byte[] encodedBytes = Encoding.UTF8.GetBytes(unencodedText);
string base64EncodedText = Convert.ToBase64String(encodedBytes);
// 應(yīng)用 URL 變體
string base64UrlEncodedText = base64EncodedText.Replace("=", "").Replace('+', '-').Replace('/', '_');
For decoding, you can use the following code:
string base64EncodedText = base64UrlEncodedText.Replace('-', '+').Replace('_', '/');
// 根據(jù)需要追加“=”字符 - 最佳方法是什么？
// 我正常的 base64 解碼現(xiàn)在使用 encodedText
HttpServerUtility class
Alternatively, you can use the HttpServerUtility and UrlTokenEncode methods of the UrlTokenDecode class:
///<summary>
/// 使用 UTF-8 字符集進行 Base 64 編碼，使用 URL 和文件名安全字母表。
///</summary>
///原始字符串
///<returns>Base64 編碼的字符串</returns>
public static string Base64ForUrlEncode(string str)
{
byte[] encbuff = Encoding.UTF8.GetBytes(str);
return HttpServerUtility.UrlTokenEncode(encbuff);
}
///<summary>
/// 使用 UTF-8 解碼使用 URL 和文件名安全字母表的 Base64 編碼字符串。
///</summary>
///Base64 代碼
///<returns>解碼后的字符串。</returns>
public static string Base64ForUrlDecode(string str)
{
byte[] decbuff = HttpServerUtility.UrlTokenDecode(str);
return Encoding.UTF8.GetString(decbuff);
}
Note 1: The output of the HttpServerUtility method is not a valid Base64 string because it replaces some characters with URL-safe characters.
Note 2: The output format of HttpServerUtility is different from the base64url algorithm in RFC4648 because it replaces '=' with '0', '1' or '2' depending on the number of equal signs replaced Padding to ensure URL security.
The above is the detailed content of How to Encode and Decode Modified Base64 URLs in ASP.NET Framework?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
C Polymorphism : is function overloading a kind of polymorphism?
Jun 20, 2025 am 12:05 AM
Yes, function overloading is a polymorphic form in C, specifically compile-time polymorphism. 1. Function overload allows multiple functions with the same name but different parameter lists. 2. The compiler decides which function to call at compile time based on the provided parameters. 3. Unlike runtime polymorphism, function overloading has no extra overhead at runtime, and is simple to implement but less flexible.
What Are the Different Kinds of Polymorphism in C ? Explained
Jun 20, 2025 am 12:08 AM
C has two main polymorphic types: compile-time polymorphism and run-time polymorphism. 1. Compilation-time polymorphism is implemented through function overloading and templates, providing high efficiency but may lead to code bloating. 2. Runtime polymorphism is implemented through virtual functions and inheritance, providing flexibility but performance overhead.
C : Is Polymorphism really useful?
Jun 20, 2025 am 12:01 AM
Yes, polymorphisms in C are very useful. 1) It provides flexibility to allow easy addition of new types; 2) promotes code reuse and reduces duplication; 3) simplifies maintenance, making the code easier to expand and adapt to changes. Despite performance and memory management challenges, its advantages are particularly significant in complex systems.
C Destructors: Common Errors
Jun 20, 2025 am 12:12 AM
C destructorscanleadtoseveralcommonerrors.Toavoidthem:1)Preventdoubledeletionbysettingpointerstonullptrorusingsmartpointers.2)Handleexceptionsindestructorsbycatchingandloggingthem.3)Usevirtualdestructorsinbaseclassesforproperpolymorphicdestruction.4
Polymorphism in C : A Comprehensive Guide with Examples
Jun 21, 2025 am 12:11 AM
Polymorphisms in C are divided into runtime polymorphisms and compile-time polymorphisms. 1. Runtime polymorphism is implemented through virtual functions, allowing the correct method to be called dynamically at runtime. 2. Compilation-time polymorphism is implemented through function overloading and templates, providing higher performance and flexibility.
C tutorial for people who know Python
Jul 01, 2025 am 01:11 AM
People who study Python transfer to C The most direct confusion is: Why can't you write like Python? Because C, although the syntax is more complex, provides underlying control capabilities and performance advantages. 1. In terms of syntax structure, C uses curly braces {} instead of indentation to organize code blocks, and variable types must be explicitly declared; 2. In terms of type system and memory management, C does not have an automatic garbage collection mechanism, and needs to manually manage memory and pay attention to releasing resources. RAII technology can assist resource management; 3. In functions and class definitions, C needs to explicitly access modifiers, constructors and destructors, and supports advanced functions such as operator overloading; 4. In terms of standard libraries, STL provides powerful containers and algorithms, but needs to adapt to generic programming ideas; 5
What Are the Various Forms of Polymorphism in C ?
Jun 20, 2025 am 12:21 AM
C polymorphismincludescompile-time,runtime,andtemplatepolymorphism.1)Compile-timepolymorphismusesfunctionandoperatoroverloadingforefficiency.2)Runtimepolymorphismemploysvirtualfunctionsforflexibility.3)Templatepolymorphismenablesgenericprogrammingfo
C Polymorphism: Coding Style
Jun 19, 2025 am 12:25 AM
C polymorphismisuniqueduetoitscombinationofcompile-timeandruntimepolymorphism,allowingforbothefficiencyandflexibility.Toharnessitspowerstylishly:1)Usesmartpointerslikestd::unique_ptrformemorymanagement,2)Ensurebaseclasseshavevirtualdestructors,3)Emp
